Initial commit (first release plus some changes)

1 files changed, 44 insertions, 0 deletions

diff --git a/utf8.h b/utf8.h
new file mode 100755
index 0000000..ec5dc71
--- /dev/null
+++ b/utf8.h
@@ -0,0 +1,44 @@
+#pragma once

+

+#include <stdlib.h>

+

+inline int isASCII(unsigned char c) {

+	return c < 128;

+}

+inline int isContinuation(unsigned char c) {

+	return c >= 128 && c < 192;

+}

+inline int is2ByteStarter(unsigned char c) {

+	return c >= 192 && c < 224;

+}

+inline int is3ByteStarter(unsigned char c) {

+	return c >= 224 && c < 240;

+}

+inline int is4ByteStarter(unsigned char c) {

+	return c >= 240 && c < 248;

+}

+inline int utf8DecodeErrorClass(int err) {

+	return err >> 12;

+}

+

+#define ERR_UNEXPECTED_CONTINUATION 0x1000

+#define ERR_INVALID_UTF8_BYTE 0x2000

+#define ERR_CONTINUATION_EXPECTED 0x3000

+#define ERRC_UNEXPECTED_CONTINUATION 0x1

+#define ERRC_INVALID_UTF8_BYTE 0x2

+#define ERRC_CONTINUATION_EXPECTED 0x3

+

+/*

+	Returns the next UTF-8 character and advances the string pointer.

+	This function does not consider the case when the current byte

+	does not align with any codepoint.

+	@param strRef a pointer to a pointer to the current character

+	@param codeRef where you want the resulting codepoint to be stored

+	@return

+		0 if everything went well

+		ERR_UNEXPECTED_CONTINUATION + 0x100 * bytes advanced + byte

+			if an unexpected continuation byte was found

+		ERR_INVALID_UTF8_BYTE + 0x100 * bytes advanced + byte

+			if an unexpected continuation byte was found

+*/

+int utf8Next(char** strRef, int* codeRef);